Abstract
The analyzed concentration of suspended sediments in the bottom layer during winter season increased higher than bottom layer during summer season in the marine national parks of Korea. This explains poor correlation between sediment concentration and attenuation coefficient during summer season (r²=0.74) and much high degree of correlation during winter season (r²=0.92). Relatively fine-sized and well-defined, monotonous size distribution may promote the correlation between concentration and attenuation coefficient due to optical homogeneity of particles during winter season. During summer season, the values showed remarkable decrease in mean size which seemed to be associated more with deflocculation. During winter season, the grain size of suspended particles showed characteristic development of floc-sized particles. This finding suggests that tidal currents enhance resuspension and sedimentation near the sea floor.
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